
Brief Biography
Jean de Lastic led the Order during the Ottoman siege of Rhodes in 1444.
Sources: Order of Malta: The Grand Masters; Wikipedia: Grand Masters of the Knights Hospitaller.

Life and service to the Order
He is also associated with the first recorded use by a Hospitaller leader of the title Grand Master (grandis magister).
Rhodes provided the Order with a new island headquarters after its departure from the Holy Land. Its masters balanced hospitaller service, maritime defence and the government of a fortified Mediterranean state.
Historical context: Order of Malta, The Grand Masters; History of the Order.

